When your girl gives you some good brain resulting in an incredible explosion of your skeetand she keeps it in her mouth then goes straight to eating your ass spitting your man juice into your anal.
*last night things got so kinky between my girl she performed a wet willy on me
-No way, you have yourself a freak bro
-No way, you have yourself a freak bro
by szcherries January 27, 2015

A joke some people play at parties. It consists of poking your finger first into your own mouth and then into your "friend"'s ear. It was originated on the "SpongeBob SquarePants" cartoon show. SpongeBob played it on Patrick Star.
Patrick: "Did you stick your tongue in my ear, SpongeBob?"
SpongeBob: "No, Patrick--I gave you a Wet Willie!"
Patrick: "Oh, okay. I thought you were doing something gross!"
SpongeBob: "No, Patrick--I gave you a Wet Willie!"
Patrick: "Oh, okay. I thought you were doing something gross!"
by Rank Frank March 28, 2012

by Dr.R1ck__Mar$ha11 November 11, 2018

Insert wet dildo into the ear of your lover or friend in an attempt to be funny...then run like hell.
Can use saliva or other bodily fluids.
Can use saliva or other bodily fluids.
by gogoppl October 1, 2010

The act of putting your finger in your mouth and then inserting the finger into someones rectum when they do not expect it and screaming, "WET WILLY!"
by ThomasGotHigh January 13, 2011

by Devin March 30, 2004

by TJ Baxter March 4, 2009
